Double row angular contact ball bearings correspond, in their design and operation, to a pair of single row angular contact ball bearings in a back-to-back arrangement, while requiring less axial space. They can operate at high speeds and are more suitable than deep groove ball bearings for supporting large axial forces in both directions.
| SKF performance class |
SKF Explorer
|
| d |
65 mm
|
Bore diameter |
|---|---|---|
| D |
140 mm
|
Outside diameter |
| B |
58.7 mm
|
Width |
| d1 |
≈ 89.85 mm
|
Shoulder diameter inner ring |
| D1 |
≈ 115.95 mm
|
Shoulder diameter outer ring |
| r1,2 |
min. 2.1 mm
|
Chamfer dimension inner ring |
| a |
84 mm
|
Distance pressure point(s) |
| da |
min. 77 mm
|
Abutment diameter shaft |
|---|---|---|
| Da |
max. 128 mm
|
Abutment diameter housing |
| ra |
max. 2 mm
|
Fillet radius |
| Basic dynamic load rating | C |
146 kN
|
|---|---|---|
| Basic static load rating | C0 |
110 kN
|
| Fatigue load limit | Pu |
4.55 kN
|
| Reference speed |
5 300 r/min
|
|
| Limiting speed |
4 500 r/min
|
|
| Calculation factor | kr |
0.07
|
| Limiting value | e |
0.8
|
| Calculation factor | X |
0.63
|
| Calculation factor | Y0 |
0.66
|
| Calculation factor | Y1 |
0.78
|
| Calculation factor | Y2 |
1.24
|
| Mass bearing |
4.1 kg
|
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